$INSM (INSMED) — 8-K: Insmed CFO Sara Bonstein to step down October 30; 2026 guidance reaffirmed

Insmed said Sara Bonstein will step down as CFO on October 30, 2026, after nearly seven years, and will remain CFO through third-quarter 2026 results and the October 29, 2026 earnings call. The company reaffirmed full-year 2026 revenue guidance of $1.25 billion to $1.40 billion for BRINSUPRI and $450 million to $470 million for ARIKAYCE. Insmed said the transition is not related to any disagreement over accounting practices, financial statements, internal controls, or operations, and it has begun a search for a successor.

Insmed said Sara Bonstein will step down as CFO on October 30, 2026, after nearly seven years, and will remain CFO through third-quarter 2026 results and the October 29, 2026 earnings call. The compan